Eat enough of them, and the world will never be the same...


Spawn Spores or Mutagen.

Animated card

Note: For accurate card stats, see infobox to the right; the one below is for illustrative purposes only.

Witcher links

Patch changes

  • Gwent icon Gwent Update: Oct 31, 2017 Patch: Mutagen will Heal, instead of Resetting a Unit. Removed Special Tag from Mutagen and Spores.
  • Gwent icon Gwent Update: Aug 29, 2017 Patch: Added Organic Tag to Mardroeme, Spores and Mutagen. General change; Doomed is no longer a tag, but an ability in card's description (applies to Spores and Mutagen).
  • Gwent icon Gwent Update: Jan 5, 2017 Patch: Fixed an exploit, using Mardroeme to get an auto-win after not choosing a target for the Mutagen card.

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